CN110804186A - Continuous production process and equipment for vinyl silicone oil - Google Patents
Continuous production process and equipment for vinyl silicone oil Download PDFInfo
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- CN110804186A CN110804186A CN201911171415.4A CN201911171415A CN110804186A CN 110804186 A CN110804186 A CN 110804186A CN 201911171415 A CN201911171415 A CN 201911171415A CN 110804186 A CN110804186 A CN 110804186A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/20—Polysiloxanes containing silicon bound to unsaturated aliphatic groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/06—Preparatory processes
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses continuous production equipment for vinyl silicone oil, which relates to the field of chemical technology and equipment and comprises a batching kettle, a metering tank, a heat conducting oil valve, a material transferring pump, a resin reaction column, a receiving tank, a preheater, a film evaporator, a condenser, a semi-finished product tank, a low-boiling-point substance temporary storage tank, a cored heat pipe, a material preparing tank and the like. Compared with the traditional intermittent and continuous processes, the full-flow automatic production process has the advantages that the full-flow automatic production is realized, the labor intensity of workers is reduced, no pungent odor gas is discharged in the production process, meanwhile, the heat release energy of a condenser in the process is recovered through the cored heat pipe, the heat recovery and utilization are realized when the cored heat pipe is applied to a preheater, the energy-saving efficiency is improved, the automatic control is realized, the operation is convenient, the volatilization speed of a product is reduced, the odor is obviously reduced, the product quality is improved, the full-flow closed cycle can be realized through the equipment, and the influence of harmful gas on the environment and the health of workers is avoided.
Description
Technical Field
The invention relates to the field of chemical technology and equipment, in particular to a continuous production process and equipment for vinyl silicone oil.
Background
The vinyl silicone oil mainly comprises vinyl-terminated polydimethylsiloxane and vinyl-terminated polymethylvinylsiloxane, and products with different viscosities and vinyl contents can be provided according to requirements. Vinyl silicone oils can be divided into: the terminal vinyl silicone oil and the high vinyl silicone oil are main raw materials of addition type liquid silicone rubber, organic silicone gel and the like; the modifier/plastic additive/reinforcing material of the rubber compound and the like can adopt two processes of batch type and continuous type in the traditional vinyl silicone oil production.
Chinese patent discloses a production method for continuously producing vinyl silicone oil by twin screws and a production system thereof (publication No. CN 103435809B), the technology of the patent realizes simple process equipment, low investment, low power consumption, low production cost, high production capacity and high product quality, the vinyl silicone oil can be continuously produced by the twin screws by improvement, more thorough automation is realized, the operation is simple, and the production is stable. Therefore, the technical personnel in the field provide a continuous production process and equipment of vinyl silicone oil, so as to solve the problems in the background technology.
Disclosure of Invention
The invention aims to provide a continuous production process and equipment of vinyl silicone oil, which aim to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a vinyl silicone oil continuous production device comprises a batching kettle, wherein the upper end of the batching kettle is connected with a metering tank, one side of the upper end of the batching kettle is communicated with a heat conducting oil valve, the bottom end of the batching kettle is connected with a first transferring pump, the output end of the first transferring pump is communicated with a first three-way pipe, the other two ends of the first three-way pipe are respectively connected with two resin reaction columns, one ends of the two resin reaction columns are respectively connected with a receiving tank, the lower end of the receiving tank is connected with a second transferring pump, the output end of the second transferring pump is communicated with a preheater, the lower end of the preheater is communicated with a third transferring pump, the output end of the third transferring pump is communicated with a film evaporator, the upper end of the film evaporator is connected with a condenser, the lower end of the film evaporator is communicated with a semi-finished product tank, and the lower end of the condenser is communicated with a low-boiling-point substance, the inner wall of the condenser is provided with a cored heat pipe, and one end of one side of the upper end of the condenser, which corresponds to the cored heat pipe, is provided with a connecting pipe.
As a further scheme of the invention: the air-conditioning system is characterized in that a gas inlet pipe is connected between the upper end of the condenser and the top end of the thin film evaporator, one end of the connecting pipe is communicated with the side face of the upper end of the condenser, the other end of the connecting pipe is communicated with one side of the upper end of the preheater, and the connecting pipe is of a hollow structure.
As a still further scheme of the invention: an inner cavity is arranged between the inner wall and the outer wall of the preheater, the evaporation end of the cored heat pipe is wound on the inner wall of the condenser, and the condensation end of the cored heat pipe penetrates through the connecting pipe and is wound in the inner cavity.
As a still further scheme of the invention: the resin reaction column and the receiving tank are both provided with two, a pipeline and a control valve are arranged between each resin reaction column and the receiving tank, the lower ends of the two receiving tanks are provided with second three-way pipes, the two ends of each second three-way pipe are respectively communicated with the bottoms of the two receiving tanks through pipelines, and the other ends of the second three-way pipes are connected with the input end of a second material transferring pump.
As a still further scheme of the invention: the heat conduction oil valve is provided with two, one of which is arranged at the upper end of the batching kettle, and the other is arranged at one side surface of the upper end of the preheater.
As a still further scheme of the invention: the upper end of the low-boiling-point substance temporary storage tank is communicated with the bottom of the condenser through a pipeline, and the lower end of the low-boiling-point substance temporary storage tank is connected with a preparation kettle.
As a still further scheme of the invention: the feed end of batching cauldron passes through pipeline and metering tank through connection, and the discharge end of batching cauldron communicates two respectively through first material transferring pump and first three-way pipe resin reaction column, the upper end of batching cauldron is provided with agitator motor, and the inside of batching cauldron is provided with the stirring rake.
As a still further scheme of the invention: a continuous production process of vinyl silicone oil comprises the following specific operation steps:
s1, conveying the raw materials to a metering tank by using an automatic batching system, conveying the raw materials metered in the metering tank into a batching kettle through a pipeline, opening a heat-conducting oil valve, introducing heat-conducting oil, heating to a certain temperature, closing the heat-conducting oil valve, starting a stirring motor on the batching kettle, and stirring for a certain time to uniformly mix the materials in the batching kettle;
s2, pumping the materials after the materials are mixed in the mixing kettle into the two resin reaction columns through a first three-way pipe by a first mixing pump for reaction, and respectively feeding the semi-finished products after the reaction into the two receiving tanks through pipelines;
s3, conveying the materials in the two receiving tanks into a preheater through a second material transfer pump, opening a heat conducting oil valve on the preheater, conveying the preheated materials at a certain temperature into a thin film evaporator through a third material transfer pump, further condensing upper gas in the thin film evaporator through a condenser, then entering a low-boiling-point substance temporary storage tank for temporary storage, and then sucking the temporary storage materials in the low-boiling-point substance temporary storage tank into a material preparation kettle through vacuum for later treatment;
s4, simultaneously, liquid at the lower part in the thin film evaporator enters the semi-finished product tank for temporary storage, and then the liquid in the semi-finished product tank is sampled and detected;
and S5, after the materials are detected to be qualified, the materials are pumped into a finished product intermediate tank in vacuum, the materials are filtered by a filter and then packaged, and unqualified materials are sent into a receiving tank for secondary treatment.
Compared with the prior art, the invention has the beneficial effects that: the invention designs a vinyl silicone oil continuous production process and equipment, compared with the traditional intermittent and continuous processes, the process and the equipment have the greatest advantages that the full-flow automatic production is realized, the labor intensity of workers is favorably reduced, in addition, no pungent odor gas is discharged in the production process, the occupational health and environmental protection are favorably realized, meanwhile, the heat release energy of the condenser in the technical process is recovered through the cored heat pipe and is applied to the preheater, thereby realizing the recovery and utilization of heat, improving the energy-saving efficiency, but also has automatic control, convenient operation, reduced volatilization speed of the product, obviously reduced odor, improved product quality, meeting the market demand, and, the application of the process technology equipment can realize closed cycle of the whole process, and the by-product can be recycled, so the process technology equipment is very friendly to the environment and occupational health.
Drawings
FIG. 1 is a schematic structural diagram of a vinyl silicone oil continuous production process and equipment;
FIG. 2 is a schematic diagram of the connection among the condenser, the wick heat pipe and the preheater in the continuous production process and equipment of vinyl silicone oil;
FIG. 3 is a process flow diagram of a vinyl silicone oil continuous production process and equipment.
In the figure: 1. a metering tank; 2. a batching kettle; 3. a heat transfer oil valve; 4. a first three-way pipe; 5. a first material transfer pump; 6. resin reaction column; 7. a receiving tank; 8. a second material transferring pump; 9. a preheater; 10. a condenser; 11. a low-boiling-point substance temporary storage tank; 12. a third material transferring pump; 13. a semi-finished product tank; 14. a thin film evaporator; 15. a cored heat pipe; 16. a gas inlet pipe; 17. a connecting pipe; 18. an inner cavity.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, in the embodiment of the present invention, a vinyl silicone oil continuous production apparatus includes a batching kettle 2, a metering tank 1 is connected to the upper end of the batching kettle 2, a heat transfer oil valve 3 is communicated with one side of the upper end of the batching kettle 2, a first transferring pump 5 is connected to the bottom end of the batching kettle 2, a first three-way pipe 4 is communicated with the output end of the first transferring pump 5, two resin reaction columns 6 are respectively connected to the other two ends of the first three-way pipe 4, a receiving tank 7 is respectively connected to one end of each of the two resin reaction columns 6, a second transferring pump 8 is connected to the lower end of the receiving tank 7, a preheater 9 is communicated with the output end of the second transferring pump 8, a third transferring pump 12 is communicated with the lower end of the preheater 9, a thin film evaporator 14 is communicated with the output end of the third transferring pump 12, a condenser 10 is connected to the upper end of the thin film evaporator 14, and a semi, the lower extreme intercommunication of condenser 10 has low boiling thing jar 11 of keeping in, the upper end of low boiling thing jar 11 of keeping in communicates in the bottom of condenser 10 through the pipeline, and the lower extreme of low boiling thing jar 11 of keeping in is connected with the stock kettle, the inner wall of condenser 10 is provided with cored heat pipe 15, and the one end that upper end one side of condenser 10 corresponds cored heat pipe 15 is provided with connecting pipe 17, wherein, conduction oil valve 3 is provided with two altogether, the upper end at batching cauldron 2 is installed to one of them conduction oil valve 3, another conduction oil valve 3 is installed in the upper end side of pre-heater 9, be convenient for utilize opening of control conduction oil.
A gas inlet pipe 16 is connected between the upper end of the condenser 10 and the top end of the thin film evaporator 14, one end of a connecting pipe 17 is communicated with the side surface of the upper end of the condenser 10, the other end of the connecting pipe 17 is communicated with one side of the upper end of the preheater 9, the connecting pipe 17 is a hollow structure, an inner cavity 18 is arranged between the inner wall and the outer wall of the preheater 9, the evaporation end of the wick heat pipe 15 is wound on the inner wall of the condenser 10, the condensation end of the wick heat pipe 15 penetrates through the connecting pipe 17 and is wound in the inner cavity 18, the heat condensed and discharged in the condenser 10 can be absorbed by the evaporation end of the wick heat pipe 15 when the electric heating device works conveniently by utilizing the wick heat pipe 15 to match with the application of the connecting pipe 17, then the heat is discharged from the condensation end of the wick heat pipe 15 under the action of the wick heat pipe 15, thereby enhancing, the condensation effect is improved, and the evaporation end and the condensation end of the wick heat pipe 15 are both wound in the inner wall of the condenser 10 and the inner cavity 18 of the preheater 9 in an annular shape, so that the working efficiency of the wick heat pipe 15 can be further improved.
Resin reaction column 6 and receiving tank 7 all are provided with two, and be provided with pipeline and control valve between every resin reaction column 6 and the receiving tank 7, the lower extreme of two receiving tanks 7 is provided with the second three-way pipe, and the both ends of second three-way pipe are linked together through the bottom of pipeline with two receiving tanks 7 respectively, the other end of second three-way pipe is connected with the input of second material transferring pump 8, utilize the application of second three-way pipe cooperation second material transferring pump 8, conveniently carry the material after the reaction in two receiving tanks 7 in preheater 9, automated operation, time saving and labor saving.
The feed end of batching cauldron 2 passes through pipeline and 1 through connection of metering tank, and the discharge end of batching cauldron 2 communicates two resin reaction columns 6 respectively through first material pump 5 and first three-way pipe 4, and the upper end of batching cauldron 2 is provided with agitator motor, and the inside of batching cauldron 2 is provided with the stirring rake, the intensive mixing material of being convenient for.
A continuous production process of vinyl silicone oil comprises the following specific operation steps:
s1, conveying the raw materials to a metering tank 1 by using an automatic batching system, conveying the metered raw materials in the metering tank 1 to a batching kettle 2 through a pipeline, opening a heat-conducting oil valve 3, introducing heat-conducting oil, heating to a certain temperature, closing the heat-conducting oil valve 3, opening a stirring motor on the batching kettle 2, and stirring for a certain time to uniformly mix the materials in the batching kettle 2;
s2, pumping the materials after the materials are mixed in the mixing kettle 2 into two resin reaction columns 6 through a first three-way pipe 4 by a first material transfer pump 5 for reaction, and respectively feeding the semi-finished products after the reaction into two receiving tanks 7 through pipelines;
s3, conveying the materials in the two receiving tanks 7 into a preheater 9 through a second material transfer pump 8, starting a heat conduction oil valve 3 on the preheater 9, conveying the preheated materials at a certain temperature into a thin film evaporator 14 through a third material transfer pump 12, further condensing upper gas in the thin film evaporator 14 through a condenser 10, then entering a low-boiling-point substance temporary storage tank 11 for temporary storage, and then sucking the temporary storage materials in the low-boiling-point substance temporary storage tank 11 into a material preparation kettle through vacuum for later treatment;
s4, simultaneously, liquid at the lower part in the thin film evaporator 14 enters the semi-finished product tank 13 for temporary storage, and then the liquid in the semi-finished product tank 13 is sampled and detected;
and S5, after the materials are detected to be qualified, the materials are pumped into a finished product intermediate tank in vacuum, the materials are filtered by a filter and then packaged, and the unqualified materials are sent into a receiving tank 7 for secondary treatment.
The production process and the production equipment have the greatest advantages that the full-flow automatic production is realized during the actual operation, the labor intensity of workers is favorably reduced, the product quality and the yield are improved, in addition, no pungent odor gas is discharged during the production process, the occupational health and the environmental protection are favorably realized, in addition, in the production process, the heat emitted by the condenser 10 is recycled and applied to the preheater 9, the condensation effect of the condenser 10 can be improved, the preheating efficiency of the preheater 9 can be further improved, the efficiency of the continuous production of the vinyl silicone oil can be further realized, meanwhile, the yield of the vinyl silicone oil of a single set of production equipment is about 10000 tons, the volatile content of the product is reduced from 1 percent to below 0.5 percent, and the production efficiency of the silicone oil is further improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The vinyl silicone oil continuous production equipment comprises a blending kettle (2), and is characterized in that the upper end of the blending kettle (2) is connected with a metering tank (1), one side of the upper end of the blending kettle (2) is communicated with a heat-conducting oil valve (3), the bottom end of the blending kettle (2) is connected with a first material transfer pump (5), the output end of the first material transfer pump (5) is communicated with a first three-way pipe (4), the other two ends of the first three-way pipe (4) are respectively connected with two resin reaction columns (6), one ends of the two resin reaction columns (6) are respectively connected with a receiving tank (7), the lower end of the receiving tank (7) is connected with a second material transfer pump (8), the output end of the second material transfer pump (8) is communicated with a preheater (9), the lower end of the preheater (9) is communicated with a third material transfer pump (12), the output end of the third material transfer pump (12) is communicated with a thin film evaporator (14), the upper end of film evaporator (14) is connected with condenser (10), and the lower extreme intercommunication of film evaporator (14) has semi-manufactured goods jar (13), the lower extreme intercommunication of condenser (10) has low boiling thing jar (11) of keeping in, the inner wall of condenser (10) is provided with cored heat pipe (15), and the one end that upper end one side of condenser (10) corresponds cored heat pipe (15) is provided with connecting pipe (17).
2. The continuous production equipment of vinyl silicone oil according to claim 1, characterized in that a gas inlet pipe (16) is connected between the upper end of the condenser (10) and the top end of the thin film evaporator (14), one end of the connecting pipe (17) is communicated with the upper end side of the condenser (10), the other end of the connecting pipe (17) is communicated with the upper end side of the preheater (9), and the connecting pipe (17) is a hollow structure.
3. The continuous production equipment for vinyl silicone oil according to claim 1, wherein an inner cavity (18) is arranged between the inner wall and the outer wall of the preheater (9), the evaporation end of the wick heat pipe (15) is wound on the inner wall of the condenser (10), and the condensation end of the wick heat pipe (15) penetrates through the connecting pipe (17) and is wound in the inner cavity (18).
4. The continuous production equipment for vinyl silicone oil according to claim 1, wherein there are two resin reaction columns (6) and two receiving tanks (7), and a pipeline and a control valve are arranged between each resin reaction column (6) and the receiving tank (7), the lower ends of the two receiving tanks (7) are provided with a second three-way pipe, and both ends of the second three-way pipe are respectively communicated with the bottoms of the two receiving tanks (7) through pipelines, and the other end of the second three-way pipe is connected with the input end of a second material transfer pump (8).
5. The continuous production equipment of vinyl silicone oil according to claim 1, characterized in that there are two heat conduction oil valves (3), wherein one heat conduction oil valve (3) is installed at the upper end of the batching kettle (2), and the other heat conduction oil valve (3) is installed at one side of the upper end of the preheater (9).
6. The continuous production equipment of vinyl silicone oil according to claim 1, wherein the upper end of the temporary low-boiling-point substance storage tank (11) is communicated with the bottom of the condenser (10) through a pipeline, and the lower end of the temporary low-boiling-point substance storage tank (11) is connected with a material preparation kettle.
7. The continuous production process and equipment for vinyl silicone oil according to claim 1, characterized in that the feed end of the batching kettle (2) is communicated with the metering tank (1) through a pipeline, the discharge end of the batching kettle (2) is respectively communicated with the two resin reaction columns (6) through a first material transfer pump (5) and a first three-way pipe (4), the upper end of the batching kettle (2) is provided with a stirring motor, and the batching kettle (2) is internally provided with a stirring paddle.
8. The continuous production process of vinyl silicone oil according to any one of claims 1 to 7, characterized in that the process comprises the following specific operating steps:
s1, conveying the raw materials to a metering tank (1) by using an automatic batching system, conveying the metered raw materials in the metering tank (1) into a batching kettle (2) through a pipeline, opening a heat conduction oil valve (3), heating the heat conduction oil to a certain temperature, closing the heat conduction oil valve (3), opening a stirring motor on the batching kettle (2), and stirring for a certain time to uniformly mix the materials in the batching kettle (2);
s2, pumping the materials which are subjected to the batching in the batching kettle (2) into the two resin reaction columns (6) through a first three-way pipe (4) by a first batching pump (5) for reaction, and feeding the semi-finished products which are subjected to the reaction into the two receiving tanks (7) through pipelines;
s3, conveying the materials in the two receiving tanks (7) into a preheater (9) through a second material transfer pump (8), opening a heat conduction oil valve (3) on the preheater (9), conveying the preheated materials at a certain temperature into a thin film evaporator (14) through a third material transfer pump (12), further condensing upper gas in the thin film evaporator (14) through a condenser (10), then entering a low-boiling-point substance temporary storage tank (11) for temporary storage, and then pumping the temporary storage materials in the low-boiling-point substance temporary storage tank (11) into a material preparation kettle through vacuum for post-treatment;
s4, simultaneously, liquid at the lower part in the thin film evaporator (14) enters the semi-finished product tank (13) for temporary storage, and then the liquid in the semi-finished product tank (13) is sampled and detected;
and S5, after the materials are detected to be qualified, the materials are pumped into a finished product intermediate tank in vacuum, the materials are filtered by a filter and then packaged, and the unqualified materials are sent into a receiving tank (7) for secondary treatment.
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| CN201911171415.4A CN110804186A (en) | 2019-11-26 | 2019-11-26 | Continuous production process and equipment for vinyl silicone oil |
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| CN201911171415.4A CN110804186A (en) | 2019-11-26 | 2019-11-26 | Continuous production process and equipment for vinyl silicone oil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113332743A (en) * | 2021-08-09 | 2021-09-03 | 山东大易化工有限公司 | Modified silicone oil reation kettle with condensing equipment |
| CN115007009A (en) * | 2022-04-08 | 2022-09-06 | 广东空天科技研究院 | Full-automatic mixing and preparing mechanism for fuel propellant |
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